1987 Press Photo Worker adjusts hose as ground water pours through tunnel wall

Give days a week, 24 hours a day, a huge drilling machine is boring a 32-foot-wide tunnel through solid rock far below the surface of the city. Although it is one of the more difficult and complex construction projects now underway int he area, it is rare

Photo is dated 1987.

Photo measures 8 x 10 inches.

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